Material Safety Data Sheet (MSDS)

Section 1 - Product Identification

Trade Name:

Silica Sand-All Grades, Vita-S, RRW, Tip Top

Common Names/Synonyms:

Sand, Silica Sand, Quartz, Crystalline Silica, Flint, Ground Silica

Product Use:

Foundry Molds, Abrasive Blasting, Glass and Ceramic Melt Sand, Aggregate Filler, Filtration Media

Manufacturers Name:

Manley Bros. of Indiana, Inc.

Manufacturers Address:

P.O. Box 80, 300 South Vermillion Street
Troy Grove, IL 61372

Manufacturers Telephone:

(815) 539-7486

Date Revised:

October 31, 2000

Emergency Number:

(815) 539-7486 (7:00 am - 4:00 pm
Central time, Monday-Friday)

Section 2 - Composition and Information on Ingredients

Hazardous Ingredient

Name:

Silica, Quartz, SiO₂

CAS Number:

14808-60-7

Concentration (%)

>95%

Exposure Limits in Air:

OSHA - PEL

10 mg/m³
% SiO₂+ 2	(8-Hour Time Weighted Average)

ACGIH - TLV

0.1 mg/cubic meter

(8-Hour Time
Weighted Average)

NIOSH

0.05 mg/cubic meter

(10-Hour Time
Weighted Average, 40-hour work week)

Exposure Limits refer to the respirable fraction

Silica is classified as hazardous under Occupational Safety and Health Administration (OSHA) regulations (29 CFR 1910.1200).

CAUTION:
Crystalline silica exists in several forms, the most common of which is quartz. If crystalline silica (quartz) is heated to more than 870^oC it can change to a form of crystalline silica known as trydimite, and if crystalline silica (quartz) is heated to more than 1470^oC, it can change to a form of crystalline silica known as cristobalite. Crystalline silica as trydimite and cristobalite are more fibrogenic than crystalline silica as quartz. The OSHA PEL for crystalline silica as trydimite and cristobalite is one-half the PEL for crystalline silica (quartz); the ACGIH TLV for crystalline silica as trydimite and cristobalite is one-half the TLV for crystalline silica as quartz.

Section 3 - Hazards Identification

Emergency Overview
Manley Bros. Silica Sand is a light buff to white sand with no odor. It is not flammable, combustible, or explosive. It can cause irritation to the eyes. A single exposure will not result in serious adverse health effects.

Potential Health Effects

Inhalation:

a. Silicosis: Respirable crystalline silica (quartz) can cause silicosis, a fibrosis (scarring) of the lungs. Silicosis may be progressive; it may lead to disability and death.

b. Cancer: Crystalline silica (quartz) inhaled from occupational sources in sufficient concentrations is classified as carcinogenic to humans. In its Sixth Annual Report on Carcinogens, the National Toxicology Program

Manley Bros. Silica Sand MSDS 10/31/00 Page 1 of 7